Date of Loss: 1 August, 1920
Returned to Service: No
While on maneuvers off the Delaware Capes, S-5 foundered due to flooding through the main induction valve. The crew was able to stop the flooding, but the S-5 was trapped on the bottom. By a combination of moving items within the submarine and pumping water, the crew was able to raise the stern above water. They then cut a hole in the hull and escaped.
No crewmembers were lost.
U.S. Navy DANFS 6: 179; Winslow 45)
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